Evidence map›Paper›PMID 20407224›Full record

ArticleCells, tissues, organs2010

Hypertrophy in mesenchymal stem cell chondrogenesis: effect of TGF-beta isoforms and chondrogenic conditioning.

Michael B Mueller, Maria Fischer, Johannes Zellner, Arne Berner, Thomas Dienstknecht, Lukas Prantl, Richard Kujat, Michael Nerlich, Rocky S Tuan, Peter Angele

Open access · bronzeAbstract read
In one paragraph

Article in Cells, tissues, organs, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 115 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
115citing papers in PubMed, 1 pooled it
5.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

115 citing papers in PubMed, 1 synthesis or guideline pooled it, 203 citations in OpenAlex.

  1. Pooled it
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  17. Regenerative capacity of human pluripotent stem cell-derived articular chondrocytes in vitro.Journal of orthopaedic research : official publication of the Orthopaedic Research Society · 2024
    Article
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  20. Review

55 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Michael B MuellerDepartment for Trauma Surgery, Regensburg University Medical Center, Regensburg, Germany. michaelbmueller@web.de
Maria Fischer
Johannes Zellner
Arne Berner
Thomas Dienstknecht
Lukas Prantl
Richard Kujat
Michael Nerlich
Rocky S Tuan
Peter Angele
University of Regensburg · DEUniversity Hospital Regensburg · DENational Institutes of Health · US

Funding

Cell and Molecular Biology of Skeletal DevelopmentZ01AR041131 · NIAMS · NATIONAL INSTITUTE OF ARTHRITIS AND MUSCULOSKELETAL AND SKIN DISEASES · PI TUAN, ROCKY S · 2002 to 2008
$6.0M
Intramural NIH HHS Z01 AR041131
6 · The paper itself

Abstract

Induction of chondrogenesis in mesenchymal stem cells (MSCs) with TGF-beta leads to a hypertrophic phenotype. The hypertrophic maturation of the chondrocytes is dependent on the timed removal of TGF-beta and sensitive to hypertrophy-promoting agents in vitro. In this study, we have investigated whether TGF-beta3, which has been shown to be more prochondrogenic compared to TGF-beta1, similarly enhances terminal differentiation in an in vitro hypertrophy model of chondrogenically differentiating MSCs. In addition, we tested the impact of the time of chondrogenic conditioning on the enhancement of hypertrophy. MSCs were chondrogenically differentiated in pellet culture in medium containing TGF-beta1 or TGF-beta3. After 2 or 4 weeks, chondrogenic medium was switched to hypertrophy-inducing medium for 2 weeks. Aggregates were analyzed histologically and biochemically on days 14, 28 and 42. The switch to hypertrophy medium after 14 days induced hypertrophic cell morphology and significant increase in alkaline phosphatase activity compared to the chondrogenesis only control using both TGF-beta1 and TGF-beta3. After 28 days predifferentiation, differences between hypertrophic and control groups diminished compared to 14 days predifferentiation. In conclusion, chondrogenic conditioning with both TGF-beta isoforms similarly induced hypertrophy in our experiment and allowed the enhancement of the hypertrophic chondrocyte phenotype by hypertrophic medium. Enhancement of hypertrophy was seen more clearly after the shorter chondrogenic conditioning. Therefore, to utilize this experimental model as a tool to study hypertrophy in MSC chondrogenesis, a predifferentiation period of 14 days is recommended.

Indexed as

AdultAlkaline PhosphataseCalcification, PhysiologicCell DifferentiationCell EnlargementChondrocytesChondrogenesisCollagen Type ICollagen Type IICollagen Type XCulture Media, ConditionedDNAExtracellular MatrixFemaleGlycerophosphatesGlycosaminoglycansA73025Alkaline Phosphatasebeta-glycerophosphoric acidCollagen Type ICollagen Type IICollagen Type XCulture Media, ConditionedDNAGlycerophosphatesGlycosaminoglycansProtein IsoformsTransforming Growth Factor betaTransforming Growth Factor beta1Transforming Growth Factor beta3

Identifiers

PMID20407224
PMCPMC2968769
OpenAlexW2032328269

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.